Surface Noise Filter; Display Setup; Color Settings - Standard Horizon FF525 Installation And Operation Manual

Fish Finder to be able to see the bottom. In these cases change the RANGE MODE from
AUTO to MANUAL Range and manually adjust the depth range until the bottom echo
becomes visible on the Fish Finder display.
5.5.2

Surface Noise Filter

An automatic filter that attempts to dynamically remove Surface Clutter that causes the
screen to be filled up with strong return echoes just below the surface. It may seem that
the same functionality could be archived using on the STC control however there is main
difference between such control in fact the STC control impacts the capability to detect
and track the bottom and is not designed to cancel completely the surface noise, on the
other side the Surface Noise Filter attempts to cancel completely the surface noise but it
doesn't affect the capability to detect and track the bottom.
The Surface Noise Filter has 9 settings: OFF, 1, ..., 8. When it is set to OFF the Surface
Noise it is not cancelled. When it is set to 1 the Surface Noise is cancelled up to a depth
of 5Ft, increasing the Surface Noise increases the depth in which the Surface Noise is
cancelled up to a depth of 255Ft when the preset is set to 8, as shown in the Surface Noise
Filter Table:
Surface Noise Filter Depth
Preset
Depth (Ft)
5.6

DISPLAY SETUP

Allows the Fish Finder's display page appearance to be changed.
5.6.0

Color Settings

Allows you to change the color of the Fish Finder display from Blue (default), White, Black,
Gray scale.
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1 2
5 10 15
Figure 5.5.2 - Surface Noise Filter Depth table
Figure 5.6 - Display Setup menu
3 4 5
20 30
6 7 8
60 130 255
FF525